tree 587b098e7bc2fe52c8b325b6bbf2d34180e38063
parent d67ed0472862cd8db9452c7117d3b623fa3c000e
author jmmv <jmmv@google.com> 1583349472 -0800
committer Copybara-Service <copybara-worker@google.com> 1583349562 -0800

Use prefix encoding for paths.

sandboxfs now has the ability to track directory paths separately from
each mapping request, essentially encoding paths as an integer that
identifies a directory and the file name within that directory.

This change adds support for this kind of encoding to cut down the
massive size of the reconfiguration messages.  As a result, we use less
CPU time in Bazel and in sandboxfs just dealing with communication
overhead.

RELNOTES: None.
PiperOrigin-RevId: 298895132